Instead of having a rocky surface, Jupiter is gaseous up to the inner core, which is either rock or a molten liquid. The gases in its atmosphere include hydrogen and helium.
There are no visible landmasses on Jupiter, and its surface gravity is 2 1/2 times stronger than that of Earth. Colorful clouds of red, brown, yellow and white paint the surface of Jupiter. This includes the Great Red Spot, which is actually a hurricane that has brewed for at least 300 years. The rest of Jupiter experiences high volumes of wind up to 400 miles per hour, and the average temperature is about -234 degrees Fahrenheit.Learn More
The shape of Earth's orbit is an ellipse, which resembles a stretched circle. Earth's orbit lies on the plane of the ecliptic, an imaginary plane in which the sun and the planets move. Earth revolves around the sun in a period of 365 days.Full Answer >
According to NASA, none of the planets in the solar system are known to have exactly four moons. It is noted that Jupiter has four large moons, known as the Galilean Satellites, but the gas giant might have up to 46 additional smaller moons.Full Answer >
According to NASA, Jupiter's moon, Ganymede, is the largest moon in the solar system. It has a diameter of 2,631 kilometers. Ganymede is larger than both Pluto and Mercury and is 3/4 the size of Mars. Unlike many other moons, Ganymede has a core that generates a substantial magnetic field.Full Answer >
Mars makes a complete rotation on its axis every 24 hours and 37 minutes. The length of a day on Mars is only 39 minutes and 35 seconds longer than the length of a day on Earth.Full Answer >